Twitter wasn’t happy, journalists were even unhappier – here’s how people reacted when Apple’s live stream announcing their new products, including two new iPhones, didn’t work

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The 52 weeks project challenged Guardian readers to take one picture a week to reflect the news or something in their lives. More than 800 people took part via Flickr and the result is a whistlestop tour through 2012 including the Queen’s diamond jubilee, the Olympics and the changeable British weather, as well as birthdays, engagements and a year full of memories.

Photograph: Gavin Wray.

iPhone photos of the year

Photography apps which recreate the retro feel of a Polaroid photo set a trend for mobile picture sharing in 2011. On Flickr, communities formed around ‘iPhonography' and InstaMeets became a worldwide phenomenon. The popularity for ‘hipstamatic’ effects also meant some of the biggest news stories of the year were seen through a phone lens using a variety of filters. We’ve taken a look through the Guardian archives and browsed through photos you’ve submitted to us on Flickr to find some of the best examples from 2011 - see them here.

To get involved: add your favourite 2011 phone photo with Hipstamatic effects to our Flickr group here.

A shrine to Steve Jobs

Photographs from the Guardian Eyewitness series: One of the many tributes to Steve Jobs set up at Apple stores as news of his death spread. This one, at the Beijing Apple store, was photographed on an iPhone 4 with the Hipstamatic app

Steve Jobs: his life and career

Technology editor Charles Arthur looks back at the career of the driving force behind Apple, Steve Jobs. He was the single-minded visionary who revolutionised three industries: computers, film and music.